Here's everything to know about HBO's 'Harry Potter' series, which may have recently cast its new Dumbledore After seven books, eight movies, one play and a whole spin-off series, Harry Potter is debuting on the small screen for the first time.

John Lithgow attends The Old Man" Season 1 NYC Tastemaker Event at ... [+] MOMA on June 14, 2022 in New York City. (Photo by Jamie McCarthy/) The first confirmed actor in the upcoming Harry Potter live-action TV series is John Lithgow who will be playing Hogwarts headmaster and wizard legend,

It seems John Lithgow spilled the (Bertie Bott's Every Flavor) beans about his involvement in HBO's in-the-works 'Harry Potter' series. 'A total surprise to me,' he says.

"It's going to define me for the last chapter of my life, I'm afraid." John Lithgow is heading to Hogwarts. The 3rd Rock From the Sun star confirmed recent rumors that he'll be playing Professor Albus Dumbledore on HBO's forthcoming Harry Potter TV series in an interview with Screenrant published Tuesday.

HBO’s upcoming “Harry Potter” series has found its Professor Albus Dumbledore in actor John Lithgow — known for his previous roles in “Conclave,” “The Crown” and “Footloose.” Lithgow confirmed to Screenrant that he had committed to the role as Headmaster of Hogwarts School of Witchcraft and Wizardry.

John Lithgow has confirmed that he will portray the Hogwarts headmaster in HBO’s upcoming “Harry Potter” series, which will begin filming this summer. Lithgow, 79, said in an interview with ScreenRant that the invitation to play the beloved character came “as a total surprise.”

The Harry Potter TV show has its first bit of confirmed casting news after John Lithgow broke his silence on taking on the role of Albus Dumbledore. There were some rumors the part was initially going to Mark Rylance, but Lithgow has been the main name in contention for the past two weeks.

When asked about the offer to play Dumbledore, Lithgow described the decision as "not easy," recognizing it could define the final phase of his illustrious career.

John Lithgow is opening up about about joining HBO's Harry Potter series where he will take on the role of Albus Dumbledore.

John Lithgow being cast as Dumbledore in the upcoming "Harry Potter" series is more significant than you might think

One thing about John Lithgow that is undeniable is that he is very much not English. Nevertheless, he's been picked to play the very, very English icon Dumbledore in HBO's upcoming "Harry Potter" series.